1380494020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3632879}}^1$

素因数の和:3632907

約数の個数: 24

約数和(自身を含む): 3051619200

約数和(自身を除く): 1671125180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 3632879, 7265758, 14531516, 18164395, 36328790, 69024701, 72657580, 138049402, 276098804, 345123505, 690247010, 1380494020]

約数ペア:

[(1, 1380494020), (2, 690247010), (4, 345123505), (5, 276098804), (10, 138049402), (19, 72657580), (20, 69024701), (38, 36328790), (76, 18164395), (95, 14531516), (190, 7265758), (380, 3632879)]